KA3225 - 225Amp Circuit Breaker

KA3225 - 225Amp Circuit Breaker

The interchangeable trip unit is one of the details that helps identify the KA3225 when you're trying to match a breaker already in service. This 225-amp, three-pole Type KA circuit breaker uses a thermal-magnetic design, is 40°C-rated, and includes load-side terminals. The KA3225 is built to last, but choosing the correct replacement is really about compatibility. Check the Type KA designation, amperage, pole count, trip-unit arrangement, interrupting ratings, terminals, and dimensions against the breaker you're replacing.

Key Features and Benefits

• 225A, three-pole configuration gives you two of the most important details for narrowing down a compatible replacement.
• The Type KA design provides another key identifier for matching existing or legacy equipment.
• Uses thermal-magnetic circuit protection with an interchangeable trip unit.
• Load-side terminals are included to clearly define part of the connection setup.
• 40°C rated according to the supplied product specifications.
• Well-suited to replacement situations where form, fit, electrical ratings, and functional compatibility need to align with the original equipment requirements.
  

Technical Specifications

• Part Number: KA3225
  
• Product Type: Thermal-Magnetic Circuit Breaker
  
• Type: KA
  
• Amperage: 225A
  
• Poles: 3
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Interchangeable
  
• Temperature Rating: 40°C
  
• A.I.C. Rating at 240VAC: 25 kA
  
• A.I.C. Rating at 480VAC: 22 kA
  
• A.I.C. Rating at 600VAC: 22 kA
  
• Load-Side Terminals: Included
  
• Width: 5.50 in.
  
• Height / Length: 10.13 in.
  
• Depth: 3.94 in.
  
• Overall Dimensions: 5.50" W × 10.13" L × 3.94 "D
  
• Approximate Ship Weight: 16.00 lb.
  

Material Compliance and Certifications

No specific UL, CSA, IEC, RoHS, REACH, or other certification or material-compliance information was provided for the KA3225. Those approvals should not be assumed. If your installation requires a specific certification or standard, confirm the applicable product documentation before installation.

Where It Works Best

The KA3225 225A circuit breaker is a practical fit for compatible existing and legacy electrical equipment that calls for a three-pole Type KA breaker with thermal-magnetic operation and an interchangeable trip unit. The included load-side terminals, published dimensions, and clearly defined interrupting ratings give you several concrete points to compare with the breaker being replaced.